The NTI Boiler 6000082671 Water Temperature Thermistor 1M Ohm Brass is a temperature-sensing component designed to monitor water temperature in compatible NTI boiler systems. It operates by changing its electrical resistance in response to temperature variations, allowing the boiler’s control system to detect water temperature and regulate heating performance accordingly. Constructed ... https://www.partshnc.com/nti-boiler-6000082671-water-temperature-thermistor-1m-ohm-brass